938 lines
29 KiB
C++
938 lines
29 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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*******************************************************************************
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* Copyright (C) 2007-2014, International Business Machines Corporation and
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* others. All Rights Reserved.
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*******************************************************************************
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*/
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "zonemeta.h"
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#include "unicode/timezone.h"
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#include "unicode/ustring.h"
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#include "unicode/putil.h"
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#include "unicode/simpletz.h"
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#include "umutex.h"
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#include "uvector.h"
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#include "cmemory.h"
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#include "gregoimp.h"
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#include "cstring.h"
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#include "ucln_in.h"
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#include "uassert.h"
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#include "uresimp.h"
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#include "uhash.h"
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#include "olsontz.h"
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static UMutex gZoneMetaLock = U_MUTEX_INITIALIZER;
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// CLDR Canonical ID mapping table
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static UHashtable *gCanonicalIDCache = NULL;
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static icu::UInitOnce gCanonicalIDCacheInitOnce = U_INITONCE_INITIALIZER;
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// Metazone mapping table
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static UHashtable *gOlsonToMeta = NULL;
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static icu::UInitOnce gOlsonToMetaInitOnce = U_INITONCE_INITIALIZER;
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// Available metazone IDs vector and table
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static icu::UVector *gMetaZoneIDs = NULL;
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static UHashtable *gMetaZoneIDTable = NULL;
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static icu::UInitOnce gMetaZoneIDsInitOnce = U_INITONCE_INITIALIZER;
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// Country info vectors
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static icu::UVector *gSingleZoneCountries = NULL;
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static icu::UVector *gMultiZonesCountries = NULL;
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static icu::UInitOnce gCountryInfoVectorsInitOnce = U_INITONCE_INITIALIZER;
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U_CDECL_BEGIN
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/**
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* Cleanup callback func
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*/
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static UBool U_CALLCONV zoneMeta_cleanup(void)
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{
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if (gCanonicalIDCache != NULL) {
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uhash_close(gCanonicalIDCache);
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gCanonicalIDCache = NULL;
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}
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gCanonicalIDCacheInitOnce.reset();
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if (gOlsonToMeta != NULL) {
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uhash_close(gOlsonToMeta);
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gOlsonToMeta = NULL;
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}
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gOlsonToMetaInitOnce.reset();
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if (gMetaZoneIDTable != NULL) {
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uhash_close(gMetaZoneIDTable);
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gMetaZoneIDTable = NULL;
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}
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// delete after closing gMetaZoneIDTable, because it holds
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// value objects held by the hashtable
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delete gMetaZoneIDs;
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gMetaZoneIDs = NULL;
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gMetaZoneIDsInitOnce.reset();
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delete gSingleZoneCountries;
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gSingleZoneCountries = NULL;
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delete gMultiZonesCountries;
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gMultiZonesCountries = NULL;
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gCountryInfoVectorsInitOnce.reset();
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return TRUE;
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}
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/**
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* Deleter for UChar* string
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*/
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static void U_CALLCONV
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deleteUCharString(void *obj) {
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UChar *entry = (UChar*)obj;
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uprv_free(entry);
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}
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/**
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* Deleter for UVector
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*/
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static void U_CALLCONV
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deleteUVector(void *obj) {
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delete (icu::UVector*) obj;
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}
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/**
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* Deleter for OlsonToMetaMappingEntry
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*/
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static void U_CALLCONV
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deleteOlsonToMetaMappingEntry(void *obj) {
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icu::OlsonToMetaMappingEntry *entry = (icu::OlsonToMetaMappingEntry*)obj;
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uprv_free(entry);
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}
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U_CDECL_END
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U_NAMESPACE_BEGIN
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#define ZID_KEY_MAX 128
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static const char gMetaZones[] = "metaZones";
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static const char gMetazoneInfo[] = "metazoneInfo";
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static const char gMapTimezonesTag[] = "mapTimezones";
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static const char gKeyTypeData[] = "keyTypeData";
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static const char gTypeAliasTag[] = "typeAlias";
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static const char gTypeMapTag[] = "typeMap";
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static const char gTimezoneTag[] = "timezone";
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static const char gPrimaryZonesTag[] = "primaryZones";
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static const char gWorldTag[] = "001";
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static const UChar gWorld[] = {0x30, 0x30, 0x31, 0x00}; // "001"
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static const UChar gDefaultFrom[] = {0x31, 0x39, 0x37, 0x30, 0x2D, 0x30, 0x31, 0x2D, 0x30, 0x31,
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0x20, 0x30, 0x30, 0x3A, 0x30, 0x30, 0x00}; // "1970-01-01 00:00"
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static const UChar gDefaultTo[] = {0x39, 0x39, 0x39, 0x39, 0x2D, 0x31, 0x32, 0x2D, 0x33, 0x31,
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0x20, 0x32, 0x33, 0x3A, 0x35, 0x39, 0x00}; // "9999-12-31 23:59"
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static const UChar gCustomTzPrefix[] = {0x47, 0x4D, 0x54, 0}; // "GMT"
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#define ASCII_DIGIT(c) (((c)>=0x30 && (c)<=0x39) ? (c)-0x30 : -1)
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/*
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* Convert a date string used by metazone mappings to UDate.
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* The format used by CLDR metazone mapping is "yyyy-MM-dd HH:mm".
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*/
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static UDate
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parseDate (const UChar *text, UErrorCode &status) {
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if (U_FAILURE(status)) {
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return 0;
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}
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int32_t len = u_strlen(text);
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if (len != 16 && len != 10) {
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// It must be yyyy-MM-dd HH:mm (length 16) or yyyy-MM-dd (length 10)
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status = U_INVALID_FORMAT_ERROR;
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return 0;
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}
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int32_t year = 0, month = 0, day = 0, hour = 0, min = 0, n;
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int32_t idx;
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// "yyyy" (0 - 3)
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for (idx = 0; idx <= 3 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT((int32_t)text[idx]);
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if (n >= 0) {
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year = 10*year + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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// "MM" (5 - 6)
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for (idx = 5; idx <= 6 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT((int32_t)text[idx]);
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if (n >= 0) {
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month = 10*month + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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// "dd" (8 - 9)
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for (idx = 8; idx <= 9 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT((int32_t)text[idx]);
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if (n >= 0) {
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day = 10*day + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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if (len == 16) {
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// "HH" (11 - 12)
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for (idx = 11; idx <= 12 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT((int32_t)text[idx]);
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if (n >= 0) {
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hour = 10*hour + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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// "mm" (14 - 15)
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for (idx = 14; idx <= 15 && U_SUCCESS(status); idx++) {
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n = ASCII_DIGIT((int32_t)text[idx]);
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if (n >= 0) {
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min = 10*min + n;
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} else {
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status = U_INVALID_FORMAT_ERROR;
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}
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}
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}
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if (U_SUCCESS(status)) {
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UDate date = Grego::fieldsToDay(year, month - 1, day) * U_MILLIS_PER_DAY
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+ hour * U_MILLIS_PER_HOUR + min * U_MILLIS_PER_MINUTE;
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return date;
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}
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return 0;
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}
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static void U_CALLCONV initCanonicalIDCache(UErrorCode &status) {
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gCanonicalIDCache = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
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if (gCanonicalIDCache == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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}
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if (U_FAILURE(status)) {
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gCanonicalIDCache = NULL;
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}
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// No key/value deleters - keys/values are from a resource bundle
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ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
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}
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const UChar* U_EXPORT2
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ZoneMeta::getCanonicalCLDRID(const UnicodeString &tzid, UErrorCode& status) {
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if (U_FAILURE(status)) {
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return NULL;
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}
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if (tzid.isBogus() || tzid.length() > ZID_KEY_MAX) {
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status = U_ILLEGAL_ARGUMENT_ERROR;
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return NULL;
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}
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// Checking the cached results
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umtx_initOnce(gCanonicalIDCacheInitOnce, &initCanonicalIDCache, status);
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if (U_FAILURE(status)) {
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return NULL;
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}
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const UChar *canonicalID = NULL;
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UErrorCode tmpStatus = U_ZERO_ERROR;
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UChar utzid[ZID_KEY_MAX + 1];
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tzid.extract(utzid, ZID_KEY_MAX + 1, tmpStatus);
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U_ASSERT(tmpStatus == U_ZERO_ERROR); // we checked the length of tzid already
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// Check if it was already cached
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umtx_lock(&gZoneMetaLock);
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{
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canonicalID = (const UChar *)uhash_get(gCanonicalIDCache, utzid);
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}
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umtx_unlock(&gZoneMetaLock);
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if (canonicalID != NULL) {
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return canonicalID;
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}
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// If not, resolve CLDR canonical ID with resource data
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UBool isInputCanonical = FALSE;
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char id[ZID_KEY_MAX + 1];
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tzid.extract(0, 0x7fffffff, id, UPRV_LENGTHOF(id), US_INV);
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// replace '/' with ':'
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char *p = id;
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while (*p++) {
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if (*p == '/') {
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*p = ':';
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}
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}
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UResourceBundle *top = ures_openDirect(NULL, gKeyTypeData, &tmpStatus);
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UResourceBundle *rb = ures_getByKey(top, gTypeMapTag, NULL, &tmpStatus);
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ures_getByKey(rb, gTimezoneTag, rb, &tmpStatus);
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ures_getByKey(rb, id, rb, &tmpStatus);
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if (U_SUCCESS(tmpStatus)) {
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// type entry (canonical) found
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// the input is the canonical ID. resolve to const UChar*
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canonicalID = TimeZone::findID(tzid);
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isInputCanonical = TRUE;
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}
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if (canonicalID == NULL) {
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// If a map element not found, then look for an alias
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tmpStatus = U_ZERO_ERROR;
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ures_getByKey(top, gTypeAliasTag, rb, &tmpStatus);
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ures_getByKey(rb, gTimezoneTag, rb, &tmpStatus);
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const UChar *canonical = ures_getStringByKey(rb,id,NULL,&tmpStatus);
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if (U_SUCCESS(tmpStatus)) {
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// canonical map found
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canonicalID = canonical;
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}
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if (canonicalID == NULL) {
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// Dereference the input ID using the tz data
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const UChar *derefer = TimeZone::dereferOlsonLink(tzid);
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if (derefer == NULL) {
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status = U_ILLEGAL_ARGUMENT_ERROR;
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} else {
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int32_t len = u_strlen(derefer);
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u_UCharsToChars(derefer,id,len);
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id[len] = (char) 0; // Make sure it is null terminated.
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// replace '/' with ':'
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char *p = id;
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while (*p++) {
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if (*p == '/') {
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*p = ':';
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}
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}
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// If a dereference turned something up then look for an alias.
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// rb still points to the alias table, so we don't have to go looking
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// for it.
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tmpStatus = U_ZERO_ERROR;
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canonical = ures_getStringByKey(rb,id,NULL,&tmpStatus);
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if (U_SUCCESS(tmpStatus)) {
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// canonical map for the dereferenced ID found
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canonicalID = canonical;
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} else {
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canonicalID = derefer;
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isInputCanonical = TRUE;
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}
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}
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}
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}
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ures_close(rb);
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ures_close(top);
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if (U_SUCCESS(status)) {
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U_ASSERT(canonicalID != NULL); // canocanilD must be non-NULL here
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// Put the resolved canonical ID to the cache
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umtx_lock(&gZoneMetaLock);
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{
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const UChar* idInCache = (const UChar *)uhash_get(gCanonicalIDCache, utzid);
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if (idInCache == NULL) {
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const UChar* key = ZoneMeta::findTimeZoneID(tzid);
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U_ASSERT(key != NULL);
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if (key != NULL) {
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idInCache = (const UChar *)uhash_put(gCanonicalIDCache, (void *)key, (void *)canonicalID, &status);
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U_ASSERT(idInCache == NULL);
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}
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}
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if (U_SUCCESS(status) && isInputCanonical) {
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// Also put canonical ID itself into the cache if not exist
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const UChar *canonicalInCache = (const UChar*)uhash_get(gCanonicalIDCache, canonicalID);
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if (canonicalInCache == NULL) {
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canonicalInCache = (const UChar *)uhash_put(gCanonicalIDCache, (void *)canonicalID, (void *)canonicalID, &status);
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U_ASSERT(canonicalInCache == NULL);
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}
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}
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}
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umtx_unlock(&gZoneMetaLock);
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}
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return canonicalID;
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}
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UnicodeString& U_EXPORT2
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ZoneMeta::getCanonicalCLDRID(const UnicodeString &tzid, UnicodeString &systemID, UErrorCode& status) {
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const UChar *canonicalID = getCanonicalCLDRID(tzid, status);
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if (U_FAILURE(status) || canonicalID == NULL) {
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systemID.setToBogus();
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return systemID;
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}
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systemID.setTo(TRUE, canonicalID, -1);
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return systemID;
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}
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const UChar* U_EXPORT2
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ZoneMeta::getCanonicalCLDRID(const TimeZone& tz) {
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if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) {
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// short cut for OlsonTimeZone
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const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz;
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return otz->getCanonicalID();
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}
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UErrorCode status = U_ZERO_ERROR;
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UnicodeString tzID;
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return getCanonicalCLDRID(tz.getID(tzID), status);
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}
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static void U_CALLCONV countryInfoVectorsInit(UErrorCode &status) {
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// Create empty vectors
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// No deleters for these UVectors, it's a reference to a resource bundle string.
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gSingleZoneCountries = new UVector(NULL, uhash_compareUChars, status);
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if (gSingleZoneCountries == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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}
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gMultiZonesCountries = new UVector(NULL, uhash_compareUChars, status);
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if (gMultiZonesCountries == NULL) {
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status = U_MEMORY_ALLOCATION_ERROR;
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}
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if (U_FAILURE(status)) {
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delete gSingleZoneCountries;
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delete gMultiZonesCountries;
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gSingleZoneCountries = NULL;
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gMultiZonesCountries = NULL;
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}
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ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
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}
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UnicodeString& U_EXPORT2
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ZoneMeta::getCanonicalCountry(const UnicodeString &tzid, UnicodeString &country, UBool *isPrimary /* = NULL */) {
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if (isPrimary != NULL) {
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*isPrimary = FALSE;
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}
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const UChar *region = TimeZone::getRegion(tzid);
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if (region != NULL && u_strcmp(gWorld, region) != 0) {
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country.setTo(region, -1);
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} else {
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country.setToBogus();
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return country;
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}
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if (isPrimary != NULL) {
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char regionBuf[] = {0, 0, 0};
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// Checking the cached results
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UErrorCode status = U_ZERO_ERROR;
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umtx_initOnce(gCountryInfoVectorsInitOnce, &countryInfoVectorsInit, status);
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if (U_FAILURE(status)) {
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return country;
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}
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// Check if it was already cached
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UBool cached = FALSE;
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UBool singleZone = FALSE;
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umtx_lock(&gZoneMetaLock);
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{
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singleZone = cached = gSingleZoneCountries->contains((void*)region);
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if (!cached) {
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cached = gMultiZonesCountries->contains((void*)region);
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}
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}
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umtx_unlock(&gZoneMetaLock);
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if (!cached) {
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// We need to go through all zones associated with the region.
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// This is relatively heavy operation.
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U_ASSERT(u_strlen(region) == 2);
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u_UCharsToChars(region, regionBuf, 2);
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StringEnumeration *ids = TimeZone::createTimeZoneIDEnumeration(UCAL_ZONE_TYPE_CANONICAL_LOCATION, regionBuf, NULL, status);
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int32_t idsLen = ids->count(status);
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if (U_SUCCESS(status) && idsLen == 1) {
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// only the single zone is available for the region
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singleZone = TRUE;
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}
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delete ids;
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// Cache the result
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umtx_lock(&gZoneMetaLock);
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{
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UErrorCode ec = U_ZERO_ERROR;
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if (singleZone) {
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if (!gSingleZoneCountries->contains((void*)region)) {
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gSingleZoneCountries->addElement((void*)region, ec);
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}
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} else {
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if (!gMultiZonesCountries->contains((void*)region)) {
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gMultiZonesCountries->addElement((void*)region, ec);
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}
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}
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}
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umtx_unlock(&gZoneMetaLock);
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}
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if (singleZone) {
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*isPrimary = TRUE;
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} else {
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// Note: We may cache the primary zone map in future.
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// Even a country has multiple zones, one of them might be
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// dominant and treated as a primary zone
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int32_t idLen = 0;
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if (regionBuf[0] == 0) {
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u_UCharsToChars(region, regionBuf, 2);
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}
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UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status);
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ures_getByKey(rb, gPrimaryZonesTag, rb, &status);
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const UChar *primaryZone = ures_getStringByKey(rb, regionBuf, &idLen, &status);
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if (U_SUCCESS(status)) {
|
|
if (tzid.compare(primaryZone, idLen) == 0) {
|
|
*isPrimary = TRUE;
|
|
} else {
|
|
// The given ID might not be a canonical ID
|
|
UnicodeString canonicalID;
|
|
TimeZone::getCanonicalID(tzid, canonicalID, status);
|
|
if (U_SUCCESS(status) && canonicalID.compare(primaryZone, idLen) == 0) {
|
|
*isPrimary = TRUE;
|
|
}
|
|
}
|
|
}
|
|
ures_close(rb);
|
|
}
|
|
}
|
|
|
|
return country;
|
|
}
|
|
|
|
UnicodeString& U_EXPORT2
|
|
ZoneMeta::getMetazoneID(const UnicodeString &tzid, UDate date, UnicodeString &result) {
|
|
UBool isSet = FALSE;
|
|
const UVector *mappings = getMetazoneMappings(tzid);
|
|
if (mappings != NULL) {
|
|
for (int32_t i = 0; i < mappings->size(); i++) {
|
|
OlsonToMetaMappingEntry *mzm = (OlsonToMetaMappingEntry*)mappings->elementAt(i);
|
|
if (mzm->from <= date && mzm->to > date) {
|
|
result.setTo(mzm->mzid, -1);
|
|
isSet = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!isSet) {
|
|
result.setToBogus();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static void U_CALLCONV olsonToMetaInit(UErrorCode &status) {
|
|
U_ASSERT(gOlsonToMeta == NULL);
|
|
ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
|
|
gOlsonToMeta = uhash_open(uhash_hashUChars, uhash_compareUChars, NULL, &status);
|
|
if (U_FAILURE(status)) {
|
|
gOlsonToMeta = NULL;
|
|
} else {
|
|
uhash_setKeyDeleter(gOlsonToMeta, deleteUCharString);
|
|
uhash_setValueDeleter(gOlsonToMeta, deleteUVector);
|
|
}
|
|
}
|
|
|
|
|
|
const UVector* U_EXPORT2
|
|
ZoneMeta::getMetazoneMappings(const UnicodeString &tzid) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UChar tzidUChars[ZID_KEY_MAX + 1];
|
|
tzid.extract(tzidUChars, ZID_KEY_MAX + 1, status);
|
|
if (U_FAILURE(status) || status == U_STRING_NOT_TERMINATED_WARNING) {
|
|
return NULL;
|
|
}
|
|
|
|
umtx_initOnce(gOlsonToMetaInitOnce, &olsonToMetaInit, status);
|
|
if (U_FAILURE(status)) {
|
|
return NULL;
|
|
}
|
|
|
|
// get the mapping from cache
|
|
const UVector *result = NULL;
|
|
|
|
umtx_lock(&gZoneMetaLock);
|
|
{
|
|
result = (UVector*) uhash_get(gOlsonToMeta, tzidUChars);
|
|
}
|
|
umtx_unlock(&gZoneMetaLock);
|
|
|
|
if (result != NULL) {
|
|
return result;
|
|
}
|
|
|
|
// miss the cache - create new one
|
|
UVector *tmpResult = createMetazoneMappings(tzid);
|
|
if (tmpResult == NULL) {
|
|
// not available
|
|
return NULL;
|
|
}
|
|
|
|
// put the new one into the cache
|
|
umtx_lock(&gZoneMetaLock);
|
|
{
|
|
// make sure it's already created
|
|
result = (UVector*) uhash_get(gOlsonToMeta, tzidUChars);
|
|
if (result == NULL) {
|
|
// add the one just created
|
|
int32_t tzidLen = tzid.length() + 1;
|
|
UChar *key = (UChar*)uprv_malloc(tzidLen * sizeof(UChar));
|
|
if (key == NULL) {
|
|
// memory allocation error.. just return NULL
|
|
result = NULL;
|
|
delete tmpResult;
|
|
} else {
|
|
tzid.extract(key, tzidLen, status);
|
|
uhash_put(gOlsonToMeta, key, tmpResult, &status);
|
|
if (U_FAILURE(status)) {
|
|
// delete the mapping
|
|
result = NULL;
|
|
delete tmpResult;
|
|
} else {
|
|
result = tmpResult;
|
|
}
|
|
}
|
|
} else {
|
|
// another thread already put the one
|
|
delete tmpResult;
|
|
}
|
|
}
|
|
umtx_unlock(&gZoneMetaLock);
|
|
|
|
return result;
|
|
}
|
|
|
|
UVector*
|
|
ZoneMeta::createMetazoneMappings(const UnicodeString &tzid) {
|
|
UVector *mzMappings = NULL;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
UnicodeString canonicalID;
|
|
UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status);
|
|
ures_getByKey(rb, gMetazoneInfo, rb, &status);
|
|
getCanonicalCLDRID(tzid, canonicalID, status);
|
|
|
|
if (U_SUCCESS(status)) {
|
|
char tzKey[ZID_KEY_MAX + 1];
|
|
int32_t tzKeyLen = canonicalID.extract(0, canonicalID.length(), tzKey, sizeof(tzKey), US_INV);
|
|
tzKey[tzKeyLen] = 0;
|
|
|
|
// tzid keys are using ':' as separators
|
|
char *p = tzKey;
|
|
while (*p) {
|
|
if (*p == '/') {
|
|
*p = ':';
|
|
}
|
|
p++;
|
|
}
|
|
|
|
ures_getByKey(rb, tzKey, rb, &status);
|
|
|
|
if (U_SUCCESS(status)) {
|
|
UResourceBundle *mz = NULL;
|
|
while (ures_hasNext(rb)) {
|
|
mz = ures_getNextResource(rb, mz, &status);
|
|
|
|
const UChar *mz_name = ures_getStringByIndex(mz, 0, NULL, &status);
|
|
const UChar *mz_from = gDefaultFrom;
|
|
const UChar *mz_to = gDefaultTo;
|
|
|
|
if (ures_getSize(mz) == 3) {
|
|
mz_from = ures_getStringByIndex(mz, 1, NULL, &status);
|
|
mz_to = ures_getStringByIndex(mz, 2, NULL, &status);
|
|
}
|
|
|
|
if(U_FAILURE(status)){
|
|
status = U_ZERO_ERROR;
|
|
continue;
|
|
}
|
|
// We do not want to use SimpleDateformat to parse boundary dates,
|
|
// because this code could be triggered by the initialization code
|
|
// used by SimpleDateFormat.
|
|
UDate from = parseDate(mz_from, status);
|
|
UDate to = parseDate(mz_to, status);
|
|
if (U_FAILURE(status)) {
|
|
status = U_ZERO_ERROR;
|
|
continue;
|
|
}
|
|
|
|
OlsonToMetaMappingEntry *entry = (OlsonToMetaMappingEntry*)uprv_malloc(sizeof(OlsonToMetaMappingEntry));
|
|
if (entry == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
break;
|
|
}
|
|
entry->mzid = mz_name;
|
|
entry->from = from;
|
|
entry->to = to;
|
|
|
|
if (mzMappings == NULL) {
|
|
mzMappings = new UVector(deleteOlsonToMetaMappingEntry, NULL, status);
|
|
if (U_FAILURE(status)) {
|
|
delete mzMappings;
|
|
deleteOlsonToMetaMappingEntry(entry);
|
|
uprv_free(entry);
|
|
break;
|
|
}
|
|
}
|
|
|
|
mzMappings->addElement(entry, status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
}
|
|
ures_close(mz);
|
|
if (U_FAILURE(status)) {
|
|
if (mzMappings != NULL) {
|
|
delete mzMappings;
|
|
mzMappings = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
ures_close(rb);
|
|
return mzMappings;
|
|
}
|
|
|
|
UnicodeString& U_EXPORT2
|
|
ZoneMeta::getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString ®ion, UnicodeString &result) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
const UChar *tzid = NULL;
|
|
int32_t tzidLen = 0;
|
|
char keyBuf[ZID_KEY_MAX + 1];
|
|
int32_t keyLen = 0;
|
|
|
|
if (mzid.isBogus() || mzid.length() > ZID_KEY_MAX) {
|
|
result.setToBogus();
|
|
return result;
|
|
}
|
|
|
|
keyLen = mzid.extract(0, mzid.length(), keyBuf, ZID_KEY_MAX + 1, US_INV);
|
|
keyBuf[keyLen] = 0;
|
|
|
|
UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status);
|
|
ures_getByKey(rb, gMapTimezonesTag, rb, &status);
|
|
ures_getByKey(rb, keyBuf, rb, &status);
|
|
|
|
if (U_SUCCESS(status)) {
|
|
// check region mapping
|
|
if (region.length() == 2 || region.length() == 3) {
|
|
keyLen = region.extract(0, region.length(), keyBuf, ZID_KEY_MAX + 1, US_INV);
|
|
keyBuf[keyLen] = 0;
|
|
tzid = ures_getStringByKey(rb, keyBuf, &tzidLen, &status);
|
|
if (status == U_MISSING_RESOURCE_ERROR) {
|
|
status = U_ZERO_ERROR;
|
|
}
|
|
}
|
|
if (U_SUCCESS(status) && tzid == NULL) {
|
|
// try "001"
|
|
tzid = ures_getStringByKey(rb, gWorldTag, &tzidLen, &status);
|
|
}
|
|
}
|
|
ures_close(rb);
|
|
|
|
if (tzid == NULL) {
|
|
result.setToBogus();
|
|
} else {
|
|
result.setTo(tzid, tzidLen);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static void U_CALLCONV initAvailableMetaZoneIDs () {
|
|
U_ASSERT(gMetaZoneIDs == NULL);
|
|
U_ASSERT(gMetaZoneIDTable == NULL);
|
|
ucln_i18n_registerCleanup(UCLN_I18N_ZONEMETA, zoneMeta_cleanup);
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
gMetaZoneIDTable = uhash_open(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, &status);
|
|
if (U_FAILURE(status) || gMetaZoneIDTable == NULL) {
|
|
gMetaZoneIDTable = NULL;
|
|
return;
|
|
}
|
|
uhash_setKeyDeleter(gMetaZoneIDTable, uprv_deleteUObject);
|
|
// No valueDeleter, because the vector maintain the value objects
|
|
gMetaZoneIDs = new UVector(NULL, uhash_compareUChars, status);
|
|
if (U_FAILURE(status) || gMetaZoneIDs == NULL) {
|
|
gMetaZoneIDs = NULL;
|
|
uhash_close(gMetaZoneIDTable);
|
|
gMetaZoneIDTable = NULL;
|
|
return;
|
|
}
|
|
gMetaZoneIDs->setDeleter(uprv_free);
|
|
|
|
UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status);
|
|
UResourceBundle *bundle = ures_getByKey(rb, gMapTimezonesTag, NULL, &status);
|
|
UResourceBundle res;
|
|
ures_initStackObject(&res);
|
|
while (U_SUCCESS(status) && ures_hasNext(bundle)) {
|
|
ures_getNextResource(bundle, &res, &status);
|
|
if (U_FAILURE(status)) {
|
|
break;
|
|
}
|
|
const char *mzID = ures_getKey(&res);
|
|
int32_t len = uprv_strlen(mzID);
|
|
UChar *uMzID = (UChar*)uprv_malloc(sizeof(UChar) * (len + 1));
|
|
if (uMzID == NULL) {
|
|
status = U_MEMORY_ALLOCATION_ERROR;
|
|
break;
|
|
}
|
|
u_charsToUChars(mzID, uMzID, len);
|
|
uMzID[len] = 0;
|
|
UnicodeString *usMzID = new UnicodeString(uMzID);
|
|
if (uhash_get(gMetaZoneIDTable, usMzID) == NULL) {
|
|
gMetaZoneIDs->addElement((void *)uMzID, status);
|
|
uhash_put(gMetaZoneIDTable, (void *)usMzID, (void *)uMzID, &status);
|
|
} else {
|
|
uprv_free(uMzID);
|
|
delete usMzID;
|
|
}
|
|
}
|
|
ures_close(&res);
|
|
ures_close(bundle);
|
|
ures_close(rb);
|
|
|
|
if (U_FAILURE(status)) {
|
|
uhash_close(gMetaZoneIDTable);
|
|
delete gMetaZoneIDs;
|
|
gMetaZoneIDTable = NULL;
|
|
gMetaZoneIDs = NULL;
|
|
}
|
|
}
|
|
|
|
const UVector*
|
|
ZoneMeta::getAvailableMetazoneIDs() {
|
|
umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs);
|
|
return gMetaZoneIDs;
|
|
}
|
|
|
|
const UChar*
|
|
ZoneMeta::findMetaZoneID(const UnicodeString& mzid) {
|
|
umtx_initOnce(gMetaZoneIDsInitOnce, &initAvailableMetaZoneIDs);
|
|
if (gMetaZoneIDTable == NULL) {
|
|
return NULL;
|
|
}
|
|
return (const UChar*)uhash_get(gMetaZoneIDTable, &mzid);
|
|
}
|
|
|
|
const UChar*
|
|
ZoneMeta::findTimeZoneID(const UnicodeString& tzid) {
|
|
return TimeZone::findID(tzid);
|
|
}
|
|
|
|
|
|
TimeZone*
|
|
ZoneMeta::createCustomTimeZone(int32_t offset) {
|
|
UBool negative = FALSE;
|
|
int32_t tmp = offset;
|
|
if (offset < 0) {
|
|
negative = TRUE;
|
|
tmp = -offset;
|
|
}
|
|
int32_t hour, min, sec;
|
|
|
|
tmp /= 1000;
|
|
sec = tmp % 60;
|
|
tmp /= 60;
|
|
min = tmp % 60;
|
|
hour = tmp / 60;
|
|
|
|
UnicodeString zid;
|
|
formatCustomID(hour, min, sec, negative, zid);
|
|
return new SimpleTimeZone(offset, zid);
|
|
}
|
|
|
|
UnicodeString&
|
|
ZoneMeta::formatCustomID(uint8_t hour, uint8_t min, uint8_t sec, UBool negative, UnicodeString& id) {
|
|
// Create normalized time zone ID - GMT[+|-]HH:mm[:ss]
|
|
id.setTo(gCustomTzPrefix, -1);
|
|
if (hour != 0 || min != 0) {
|
|
if (negative) {
|
|
id.append((UChar)0x2D); // '-'
|
|
} else {
|
|
id.append((UChar)0x2B); // '+'
|
|
}
|
|
// Always use US-ASCII digits
|
|
id.append((UChar)(0x30 + (hour%100)/10));
|
|
id.append((UChar)(0x30 + (hour%10)));
|
|
id.append((UChar)0x3A); // ':'
|
|
id.append((UChar)(0x30 + (min%100)/10));
|
|
id.append((UChar)(0x30 + (min%10)));
|
|
if (sec != 0) {
|
|
id.append((UChar)0x3A); // ':'
|
|
id.append((UChar)(0x30 + (sec%100)/10));
|
|
id.append((UChar)(0x30 + (sec%10)));
|
|
}
|
|
}
|
|
return id;
|
|
}
|
|
|
|
const UChar*
|
|
ZoneMeta::getShortID(const TimeZone& tz) {
|
|
const UChar* canonicalID = NULL;
|
|
if (dynamic_cast<const OlsonTimeZone *>(&tz) != NULL) {
|
|
// short cut for OlsonTimeZone
|
|
const OlsonTimeZone *otz = (const OlsonTimeZone*)&tz;
|
|
canonicalID = otz->getCanonicalID();
|
|
}
|
|
if (canonicalID == NULL) {
|
|
return NULL;
|
|
}
|
|
return getShortIDFromCanonical(canonicalID);
|
|
}
|
|
|
|
const UChar*
|
|
ZoneMeta::getShortID(const UnicodeString& id) {
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
const UChar* canonicalID = ZoneMeta::getCanonicalCLDRID(id, status);
|
|
if (U_FAILURE(status) || canonicalID == NULL) {
|
|
return NULL;
|
|
}
|
|
return ZoneMeta::getShortIDFromCanonical(canonicalID);
|
|
}
|
|
|
|
const UChar*
|
|
ZoneMeta::getShortIDFromCanonical(const UChar* canonicalID) {
|
|
const UChar* shortID = NULL;
|
|
int32_t len = u_strlen(canonicalID);
|
|
char tzidKey[ZID_KEY_MAX + 1];
|
|
|
|
u_UCharsToChars(canonicalID, tzidKey, len);
|
|
tzidKey[len] = (char) 0; // Make sure it is null terminated.
|
|
|
|
// replace '/' with ':'
|
|
char *p = tzidKey;
|
|
while (*p++) {
|
|
if (*p == '/') {
|
|
*p = ':';
|
|
}
|
|
}
|
|
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
UResourceBundle *rb = ures_openDirect(NULL, gKeyTypeData, &status);
|
|
ures_getByKey(rb, gTypeMapTag, rb, &status);
|
|
ures_getByKey(rb, gTimezoneTag, rb, &status);
|
|
shortID = ures_getStringByKey(rb, tzidKey, NULL, &status);
|
|
ures_close(rb);
|
|
|
|
return shortID;
|
|
}
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|